[SilentServiceCPO]

From the article: The USS Jimmy Carter is the most heavily armed submarine ever built

Hardly. Any one of the Trident class missile boats is by itself more heavily armed than every country on earth except the U.S and Russia.

[ASA Vet]

The UK has 4 Vanguard class nuc subs each armed with 16 Trident II D-5 missles.
That puts them fairly high up on the BA scale.